Soon after, Asus confirmed the issue, admitting that the Prime's "metallic unibody design… may affect the performance of the GPS when receiving signals from satellites".

Since then, an problem with the tablet's Wi-Fi has cropped up. The latest OTA patch doesn't appear to tackle it - at least, it doesn't up the Wi-Fi driver's version number, forum posters say.

Asus UK doesn't believe any Britain-bound Primes suffer from the Wi-Fi issue, but they will be affected by the weak GPS performance. The company said buyers can have a full refund if that's a problem for them, or gain an extra six months of warranty coverage. ®